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Author Question: The blood exchanges oxygen and carbon dioxide in the: a. heart. b. liver. c. digestive system. d. ... (Read 74 times) |
The Babylonians wrote numbers in a system that used 60 as the base value rather than the number 10. They did not have a symbol for "zero."
A seasonal flu vaccine is the best way to reduce the chances you will get seasonal influenza and spread it to others.
During the twentieth century, a variant of the metric system was used in Russia and France in which the base unit of mass was the tonne. Instead of kilograms, this system used millitonnes (mt).
Multiple experimental evidences have confirmed that at the molecular level, cancer is caused by lesions in cellular DNA.
Walt Disney helped combat malaria by making an animated film in 1943 called The Winged Scourge. This short film starred the seven dwarfs and taught children that mosquitos transmit malaria, which is a very bad disease. It advocated the killing of mosquitos to stop the disease.